break语句学习

package HspLearning;

public class Break01 {
public static void main(String[] args) {
for (int i = 0;i <= 20;i++){
System.out.println(Math.random()*100);
}

    System.out.println("================");

    for (int j = 0;j<=10;j++){
        for (int k = 0;k<=4;k++){
            if(k == 3){
                break;
            }
            System.out.println("j="+j+" "+"k="+k);
        }
    }
}

}
结果============
28.723169486107516
97.1418163515229
19.40794794100689
38.88279742863347
49.27327553117081
88.540834753765
11.422883929737427
86.81849152050022
86.82991067245271
81.96517462011299
98.83331300037527
22.6762472647674
85.16514378290204
80.14083140740638
35.60482642026697
25.36727066117985
79.00140916957122
81.60765707620673
93.64572751016328
63.59464152380191
6.783763078884508
================
j=0 k=0
j=0 k=1
j=0 k=2
j=1 k=0
j=1 k=1
j=1 k=2
j=2 k=0
j=2 k=1
j=2 k=2
j=3 k=0
j=3 k=1
j=3 k=2
j=4 k=0
j=4 k=1
j=4 k=2
j=5 k=0
j=5 k=1
j=5 k=2
j=6 k=0
j=6 k=1
j=6 k=2
j=7 k=0
j=7 k=1
j=7 k=2
j=8 k=0
j=8 k=1
j=8 k=2
j=9 k=0
j=9 k=1
j=9 k=2
j=10 k=0
j=10 k=1
j=10 k=2